Autel AutoLink AL539B OBDII Code Reader & Electrical Test Tool Update Online

Autel AutoLink AL539B OBDII Code Reader & Electrical Test Tool   Autel AutoLink AL539B Feature & Function: 1. Works on ALL 1996 and newer vehicles(OBDII & CAN)-domestic and import 2. Capable of diagnosing 12V charging systems, starting systems and condition of discharged battery 3. Easy-to-read AVOmeter allows you to test voltage, continuity and current at the fingertip 4. Features the unique patented One-Click I/M Readiness Key for quick State Emissions readiness check and drive cycle verification 5. Provides quick and accurate load-free testing of most types of 12V batteries, including AGM, standard and maintenance-free batteries 6. Bright color coded LEDs and built-in speaker provide both visual and audible tone for readiness verification 7. Easily determines the cause of the Check Engine Light (MIL) 8. Retrieves generic (P0, P2, P3, and U0), manufacturer specific (P1, P3, and U1) codes and pending codes 9. Turns off Check Engine Light (MIL), clears codes and resets mon